Greywater Reuse Calculator
Estimate how much water you can reclaim from showers, sinks, and laundry for irrigation or toilet flushing.
Daily Greywater Available
39.0 gallons
Daily Greywater Available vs Water Rate
सूत्र
## How to Calculate Greywater Reuse Greywater is wastewater from showers, sinks, and laundry (not toilets or kitchen sinks) that can be safely reused for irrigation. ### Formula **Reusable Greywater = (Shower + Laundry + Sink) * Reuse %** ### Sources - Showers: 20-40 gal/day per household - Laundry: 15-30 gal/load - Bathroom sinks: 5-15 gal/day Greywater can reduce household water consumption by 30-50%.
हल किया गया उदाहरण
A household generating 40 gal shower, 15 gal laundry, 10 gal sink daily, reusing 60% at $5/1000 gal.
- 01Total greywater: 40 + 15 + 10 = 65 gal/day
- 02Reusable: 65 * 60% = 39 gal/day
- 03Annual: 39 * 365 = 14,235 gallons
- 04Annual savings: 14,235 * $5 / 1,000 = $71
अक्सर पूछे जाने वाले प्रश्न
What is greywater?
Greywater is gently used water from showers, bathtubs, bathroom sinks, and clothes washers. It does not include water from toilets (blackwater) or kitchen sinks (due to grease and food particles).
Is greywater reuse legal?
Many states allow greywater reuse for subsurface irrigation with simple permits. California, Arizona, and Texas have relatively permissive greywater codes. Always check local regulations.
Is greywater safe for plants?
Yes, when using biodegradable soaps. Avoid using greywater on edible root vegetables or leafy greens. It works well for fruit trees, ornamental plants, and lawns.